i am using oracle data source and it was working fine but suddenly this error prompted after a month [JBossManagedConnectionPool] Exception destroying ManagedConnection org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener@e6899[state=DESTROYED mc=org.jboss.resource.adapter.jdbc.local.LocalManagedConnection@7103af handles=0 lastUse=1156519380593 permit=false trackByTx=false mcp=org.jboss.resource.connectionmanager.JBossManagedConnectionPool$OnePool@1a8ecf4 context=org.jboss.resource.connectionmanager.InternalManagedConnectionPool@15c9f9d xaResource=org.jboss.resource.connectionmanager.TxConnectionManager$LocalXAResource@1f33bb0 txSync=null]org.jboss.resource.JBossResourceException: SQLException; - nested throwable: (java.sql.SQLException: Io exception: Connection reset) at org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.checkException(BaseWrapperManagedConnection.java:481) at org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.destroy(BaseWrapperManagedConnection.java:206) at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.doDestroy(InternalManagedConnectionPool.java:550) at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.removeTimedOut(InternalManagedConnectionPool.java:415) at org.jboss.resource.connectionmanager.IdleRemover$1.run(IdleRemover.java:81) at java.lang.Thread.run(Thread.java:536) Caused by: java.sql.SQLException: Io exception: Connection reset at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:124) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:161) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:273) at oracle.jdbc.driver.T4CConnection.logoff(T4CConnection.java:395) at oracle.jdbc.driver.PhysicalConnection.close(PhysicalConnection.java:1046) at org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.destroy(BaseWrapperManagedConnection.java:202) ... 4 more Please let me what is the solution for this View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3967746#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...